Interesting Article...

Arguing the Upside of Being Down, Eric G. Wilson, author of Against Happiness, argues for the vital need for sadness in the world.
Excerpt: All Things Considered, February 11, 2008
Author Eric G. Wilson has come to realize he was born to the blues, and he has made peace with his melancholy state. But it took some time, as he writes in his new book, a polemic titled Against Happiness: In Praise of Melancholy.

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http://www.npr.org/templates/story/story.php?storyId=18885211